Light high-pressure weight carrying gasbag

Abstract

The invention relates to a light high-pressure weight carrying gasbag. The light high-pressure weight carrying gasbag is composed of a gasbag body and an inflating valve, and a sealed gasbag cavity is formed in the gasbag body. The light high-pressure weight carrying gasbag is characterized in that the gasbag body is composed of a wearproof layer, a puncture-resisting layer and an airtight layer, the wearproof layer, the puncture-resisting layer and the airtight layer are coaxially arranged from the outside to the inside of the gasbag body in sequence, and are tightly bonded with each other; a binder is uniformly smeared between adjacent two layers of rubber layers, and the included angle of twining directions is 60-70 degrees. The light high-pressure weight carrying gasbag is good in airtightness, under safe working pressure, the pressure of the gasbag is not lower than 98% of initial pressure after the gasbag is stored for 24 hours at the indoor temperature, the burst pressure is increased to 5MPa, high working pressure and safe coefficient can be obtained, and thus the gasbag has high bearing performance and safety.

Description

technical field [0001] The invention belongs to the field of heavy object handling and the like, and relates to an air bag for carrying heavy objects, in particular to a light weight high pressure air bag for carrying heavy objects with light weight, large lifting capacity and high safety factor. Background technique [0002] Rubber airbags appeared in the 1980s, and they have become more and more widely used in the fields of heavy object displacement and heavy object launching. For example, high-pressure rubber airbags are used to move thousands of tons of concrete caissons from the construction site to semi-submersible barge or directly into the water, etc. [0003] The application of high-pressure rubber airbags in the field of heavy object handling is mainly limited by the bearing capacity and safety of the airbags. Large gravity caissons are heavy and over ten meters high, but the limited bottom area limits the number of airbags that can be applied. This requires that...

AI Technical Summary

Problems solved by technology

At the same time, large heavy objects, usually of concrete structure, have a rough bottom surface, which quickly wears out the airbag; steel bars and other objects are often exposed at the bottom of the heavy object, which is easy to cut and puncture the airbag

With the development of airbag manufacturing technology and application technology, in order to meet the requirements of large-scale heavy object handling, the currently used marine airbags increase the proportion of skeleton materials on the one hand and increase the thickness of the airbag wall on the other hand, but these methods can only be achieved to a certain extent. Improving the bearing capacity of the airbag does not help much in improving the safety of the airbag from wear and tear and puncture prevention

In addition, increasing the proportion of the skeleton material and increasing the thickness of the airbag wall will easily lead to an increase in the weight of the airbag, and also cause inconvenience in use

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